Table 4 Pearson correlation of measured 24-h urine sodium with spot urine sodium and predicted 24-h sodium from new equation models
24-h urine sodium (measured) | P value | |
|---|---|---|
Spot urine sodium | 0.219 | < 0.001 |
New predicted 24-h urine sodium equation | 0.501 | < 0.001 |
Tanaka equation | 0.232 | < 0.001 |
INTERSALT equation | 0.400 | < 0.001 |